81665344

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:551

約数の個数: 56

約数和(自身を含む): 171907200

約数和(自身を除く): 90241856

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 239, 281, 304, 478, 562, 608, 956, 1124, 1216, 1912, 2248, 3824, 4496, 4541, 5339, 7648, 8992, 9082, 10678, 15296, 17984, 18164, 21356, 36328, 42712, 67159, 72656, 85424, 134318, 145312, 170848, 268636, 290624, 341696, 537272, 1074544, 1276021, 2149088, 2552042, 4298176, 5104084, 10208168, 20416336, 40832672, 81665344]

約数ペア:

[(1, 81665344), (2, 40832672), (4, 20416336), (8, 10208168), (16, 5104084), (19, 4298176), (32, 2552042), (38, 2149088), (64, 1276021), (76, 1074544), (152, 537272), (239, 341696), (281, 290624), (304, 268636), (478, 170848), (562, 145312), (608, 134318), (956, 85424), (1124, 72656), (1216, 67159), (1912, 42712), (2248, 36328), (3824, 21356), (4496, 18164), (4541, 17984), (5339, 15296), (7648, 10678), (8992, 9082)]